1-[4-[1-[(2,6-Difluorophenyl)methyl]-5-(1,3-dihydroisoindol-2-ylmethyl)-2,4-dioxo-3-phenylthieno[2,3-d]pyrimidin-6-yl]phenyl]-3-methoxyurea 以77%的产率得到1-[4-[1-[(2,6-Difluorophenyl)methyl]-5-(1,3-dihydroisoindol-2-ylmethyl)-2,4-dioxo-3-phenylthieno[2,3-d]pyrimidin-6-yl]phenyl]-3-methoxyurea;hydrochloride